<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
    private $_id;
    
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
	    /*if ($this->username === 'admin' && $this->password === 'admin') {
	        $this->_id = -1;
            $this->errorCode = self::ERROR_NONE;
	    } else {*/
    		$user = User::model()->find('LOWER(username) = ?', array(strtolower($this->username)));
            if ($user === null) {
                $this->errorCode=self::ERROR_USERNAME_INVALID;
            } else if (!$user->validatePassword($this->password)) {
                $this->errorCode=self::ERROR_PASSWORD_INVALID;
            } else {
                $this->_id = $user->id;
                $this->username = $user->username;
                $this->setState('lastLogin', date('m/d/y g:i A', strtotime($user->last_login_time)));
                $user->saveAttributes(array(
                    'last_login_time'=>date('Y-m-d H:i:s', time()),
                ));
                $this->errorCode = self::ERROR_NONE;
            }
        //}
        
		return $this->errorCode == self::ERROR_NONE;
	}
    
    public function getId()
    {
        return $this->_id;
    }
}